Phased Array Ultrasonic Testing (PAUT)

Introduction

Phased Array Ultrasonic Testing (PAUT) is one of the most advanced volumetric NDT methods used for high‑precision weld inspection, corrosion mapping, flaw characterization, and structural integrity assessment. PAUT uses multiple ultrasonic elements and electronic beam steering to produce detailed cross‑sectional images (S‑scans, B‑scans, C‑scans) that significantly enhance flaw detection accuracy.

PAUT is widely used in Oil & Gas, Petrochemical, Power Generation, Marine, Aerospace, Pipeline Construction, Fabrication, and Heavy Industry. It is considered a critical skill for advanced NDT professionals and is often required for API, ASME, and ISO‑based inspection programs.

This GTMCS Phased Array Ultrasonic Testing (PAUT) program provides advanced training in beam steering, focal laws, scanning techniques, data interpretation, and code‑based acceptance criteria. The course is aligned with ISO 9712, ASNT SNT‑TC‑1A, and industry best practices.

This training course will highlight:

• PAUT principles, beam steering & focal laws
• S‑scan, B‑scan & C‑scan imaging techniques
• Weld inspection & flaw characterization
• Calibration, wedge delay & TCG setup
• Acceptance criteria from ASME, API, ISO

Course Benefits

• Master advanced ultrasonic inspection techniques
• Interpret PAUT images with high accuracy
• Detect, size & characterize complex flaws
• Enhance asset integrity & weld quality assurance
• Prepare for ISO 9712 / ASNT certification
• Increase employability in high‑demand NDT roles

Tools & Technologies Covered

• Phased array flaw detectors (OmniScan, M2M, Sonatest)
• Linear, matrix & sectorial scan probes
• Wedges, scanners & encoding systems
• Focal law calculators & TCG setup
• Advanced imaging software

Practical Workshops

• PAUT equipment setup & calibration
• S‑scan, B‑scan & C‑scan acquisition
• Weld flaw detection & sizing
• Encoded scanning & data recording
• Level II evaluation & reporting simulation

Real‑World Case Studies

• Pipeline girth weld PAUT inspection
• Pressure vessel & tank weld evaluation
• Structural steel & offshore PAUT
• Corrosion mapping & wall loss assessment
• Shutdown/turnaround PAUT operations

Industry Relevance

This course is essential for:

• Oil & Gas & Petrochemical inspectors
• Pipeline & welding inspection teams
• Mechanical, civil & structural inspectors
• Marine & offshore inspection teams
• Advanced NDT & asset integrity specialists

Future Skills Alignment

• Advanced ultrasonic imaging competency
• Digital NDT & data interpretation
• Flaw characterization & defect sizing
• Technical reporting & documentation
• Foundation for TOFD & AUT

Objectives

By the end of this training course, participants will be able to:

• Perform PAUT inspections to Level II competency
• Interpret S‑scan, B‑scan & C‑scan images
• Apply acceptance criteria from ASME, API, ISO
• Detect & size weld flaws accurately
• Prepare advanced PAUT inspection reports
• Pass ISO 9712 / ASNT PAUT certification exams

Training Methodology

• Instructor‑led advanced demonstrations
• Hands‑on scanning with real components
• Case study analysis
• Scenario‑based flaw evaluation
• Daily quizzes & certification preparation

Organisational Impact

• Improved volumetric inspection accuracy
• Reduced welding failures & internal defects
• Enhanced compliance with global standards
• Stronger asset integrity & reliability
• Better documentation & reporting consistency

Personal Impact

• Higher technical confidence in PAUT
• Improved flaw detection & sizing skills
• Stronger understanding of ultrasonic physics
• Career advancement in advanced NDT roles
• Eligibility for ISO 9712 / ASNT certification

Who Should Attend?

• Experienced UT Level II inspectors
• Pipeline & welding inspectors
• Mechanical, civil & structural inspectors
• Advanced NDT technicians
• Anyone preparing for PAUT certification

Certificates

Upon successful completion, participants receive a GTMCS Certificate of Completion and are prepared for ISO 9712 / ASNT PAUT certification exams.